Peristaltic pump for cement grinding aid selection, method to improve hose life

June 13, 2022

What is a cement Grinding Aid? What are the advantages of a peristaltic pump? How to improve the life of a peristaltic pump hose? Don't worry, these questions, today Shen Chen one for everyone to solve!

1. What is a cement grinding aid?

Cement grinding aid is a kind of chemical additive to improve the grinding effect and performance of cement. It can improve the performance of cement. Common cement grinding aids are liquid and powder (solid). Among them, solid grinding aids are used in early stage. Due to dust pollution, solid Cement Grinding Aids will gradually transition to liquid grinding aids.

2 , the characteristics of the peristaltic pump:

The advantage of the peristaltic pump is that the liquid itself does not touch the pump body and is easy to clean. However, the peristaltic pump needs to be replaced regularly. In order to improve work efficiency, reduce the cost of consumables, and reduce the frequency of changing tubes, the life of the peristaltic pump hose has become one of the most important aspects of selecting a peristaltic pump.

3 , how to improve the life of the peristaltic pump hose?

The peristaltic pump tube used to transport the cement grinding aid can meet the demand with the silicone tube. There is no need to use the inlet tube, but the majority of users may have such a question: the hose material is the same, the specifications are the same, and the life expectancy is the same? The answer is no, in addition to the material impact of the hose itself, another important factor is the performance of the pump head and the speed.

The peristaltic pump works by squeezing the hose, and the life of the hose is often the crush fatigue damage, that is, the limit of the limit of the hose being squeezed, so the higher the speed, the shorter the life. This theory tells us that when selecting a peristaltic pump, if there is no special requirement, use a thicker pipe as much as possible so that the flow rate can be met at a lower rotational speed. This achieves the purpose of increasing the life of the hose.

Another factor to consider is the performance of the pump head itself, whether the pressure can be adjusted, and whether the pressure tube gap is uniform. Pressure regulation prevents the hose from being over-pressurized and unable to be released, or insufficient pressure to allow it to be transported. When the hose is over-pressurized, the life will be shortened exponentially, which will seriously affect the normal work. When the hose is in negative tolerance, or when the working wall is thin for a period of time, the pressure may be insufficient. Not even water. The uniformity of the pressure tube gap is also a factor to be considered. Because the principle of the peristaltic pump determines the overall sealing performance during the working process, the pressure will be adjusted according to the lowest pressure point and no water leakage. If the pressure tube gap is not uniform. This will cause the difference between the highest point and the lowest point of the pressure to be extremely large, so that the hose will be partially over-pressurized, and then this part of the hose will reach the life first.

It can be seen that in order to obtain a higher hose life, in addition to considering the rotational speed, the performance of the pump head is one of the important factors.

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